Mounting Hardware FIBRE INSULATOR
4401
Keystone Electronics
Restricted Availability
Obsolete
Mouser Part #
534-4401
Obsolete
Keystone Electronics
Mounting Hardware FIBRE INSULATOR
Details
Insulators
Transistor
Brass
0.128 in
38.1 mm
0.375 in
0.094 in
Mounting Hardware HI-TORQUE INSERT, BRASS .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL
IUTB-440-135
SI
1:
¥49.8
8,792 In Stock
Mouser Part #
153-IUTB-440-135
SI
Mounting Hardware HI-TORQUE INSERT, BRASS .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL
8,792 In Stock
1
¥49.8
10
¥34.9
100
¥27.9
500
¥26.2
1,000
View
1,000
¥22.1
10,000
¥21.3
25,000
¥20.8
50,000
¥20.1
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Brass
0.158 in
0.135 in
4-40
Mounting Hardware HI-TORQUE INSERT, STAINLESS STEEL .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL
IUTC-440-135
SI
1:
¥103
806 In Stock
Mouser Part #
153-IUTC-440-135
SI
Mounting Hardware HI-TORQUE INSERT, STAINLESS STEEL .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL
806 In Stock
1
¥103
10
¥72.4
100
¥58
500
¥54.6
1,000
View
1,000
¥46.3
10,000
¥44.3
25,000
¥43.4
50,000
Quote
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Stainless Steel
0.158 in
0.135 in
0.179 in
4-40
Mounting Hardware ULTRASONIC INSERT, STAINLESS
IUC-440-1
SI
1:
¥79.7
5,287 In Stock
Mouser Part #
153-IUC-440-1
SI
Mounting Hardware ULTRASONIC INSERT, STAINLESS
5,287 In Stock
1
¥79.7
10
¥57
100
¥45.7
500
¥41
1,000
View
1,000
¥38.2
2,000
¥37
10,000
¥34.9
25,000
¥34.2
50,000
¥33.1
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Stainless Steel
0.153 in
0.135 in
0.172 in
4-40
Mounting Hardware ULTRASONIC INSERT, ALUM
IUA-440-1
SI
1:
¥43.2
1,426 In Stock
Mouser Part #
153-IUA-440-1
SI
Mounting Hardware ULTRASONIC INSERT, ALUM
1,426 In Stock
1
¥43.2
10
¥31.2
100
¥25.1
500
¥22.6
1,000
View
1,000
¥20.9
2,000
¥20.3
10,000
¥19.1
25,000
¥18.8
50,000
¥18.1
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Aluminum
0.153 in
0.135 in
0.172 in
4-40
Mounting Hardware POST MOLD FLANGE INSERT BRASS
PFLB-440-1
SI
1:
¥79.7
2,370 In Stock
Mouser Part #
153-PFLB-440-1
SI
Mounting Hardware POST MOLD FLANGE INSERT BRASS
2,370 In Stock
1
¥79.7
10
¥56.6
100
¥45.3
500
¥40.9
1,000
View
1,000
¥37.9
2,000
¥36.9
10,000
¥34.7
25,000
¥33.9
50,000
¥32.9
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
0.166 in
0.219 in
4-40
Mounting Hardware ULTRASONIC INSERT, BRASS
IUB-440-1
SI
1:
¥36.5
31 In Stock
10,000 Expected 9/18/2026
Mouser Part #
153-IUB-440-1
SI
Mounting Hardware ULTRASONIC INSERT, BRASS
31 In Stock
10,000 Expected 9/18/2026
1
¥36.5
10
¥25.7
100
¥20.6
500
¥19.4
1,000
View
1,000
¥16.3
10,000
¥15.6
25,000
¥15.3
50,000
¥14.8
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Brass
0.153 in
0.135 in
0.172 in
4-40
Mounting Hardware POST MOLD INSERT, BRASS
PPA-440-1
SI
1:
¥54.8
1,910 In Stock
Mouser Part #
153-PPA-440-1
SI
Mounting Hardware POST MOLD INSERT, BRASS
1,910 In Stock
1
¥54.8
10
¥39.4
100
¥31.4
500
¥28.2
1,000
View
1,000
¥26.2
2,000
¥25.6
10,000
¥24.1
25,000
¥23.6
50,000
¥22.8
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Aluminum
0.188 in
0.169 in
4-40
Mounting Hardware FLOATER, ASSY, STAINLESS,NL
AC-440-1
PEM
1:
¥363.8
371 In Stock
5,000 Expected 8/10/2026
Mouser Part #
153-AC-440-1
PEM
Mounting Hardware FLOATER, ASSY, STAINLESS,NL
371 In Stock
5,000 Expected 8/10/2026
1
¥363.8
10
¥272.4
100
¥210.9
500
¥199.3
1,000
View
1,000
¥194.3
2,000
¥187.7
5,000
¥181
10,000
¥176.1
25,000
Quote
Buy
Min.: 1
Mult.: 1
Details
Screws & Fasteners
Non-Locking
Stainless Steel
9.14 mm
4-40
Female
Mounting Hardware MOLD-IN INSERT,BLIND,STAINLESS
IBC-440-12
SI
1:
¥159.5
387 In Stock
Mouser Part #
153-IBC-440-12
SI
Mounting Hardware MOLD-IN INSERT,BLIND,STAINLESS
387 In Stock
1
¥159.5
10
¥119.1
100
¥92.7
500
¥87.4
1,000
View
1,000
¥85.5
2,000
¥82.7
5,000
¥79.7
10,000
¥76.9
25,000
¥75.7
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Stainless Steel
0.438 in
0.188 in
4-40
Mounting Hardware STUD, BROACHING, PHOS BRONZE
KFH-440-12ET
PEM
1:
¥53.2
11,180 In Stock
Mouser Part #
153-KFH-440-12ET
PEM
Mounting Hardware STUD, BROACHING, PHOS BRONZE
11,180 In Stock
1
¥53.2
10
¥38.7
100
¥31.1
500
¥27.9
1,000
View
1,000
¥25.9
2,000
¥25.2
10,000
¥23.8
25,000
¥23.3
50,000
¥22.4
Buy
Min.: 1
Mult.: 1
Details
Screws & Fasteners
Broaching Studs
Steel
4-40
Mounting Hardware HI-TORQUE INSERT, ALUMINUM .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL
IUTA-440-135
SI
1:
¥54.8
949 In Stock
Mouser Part #
153-IUTA-440-135
SI
Mounting Hardware HI-TORQUE INSERT, ALUMINUM .135X.152 4-40 THREAD ULTRASONIC HEAT STAKING DIAGONAL
949 In Stock
1
¥54.8
10
¥39
100
¥31.2
500
¥28.1
1,000
View
1,000
¥26.1
2,000
¥25.4
10,000
¥23.9
25,000
¥23.4
50,000
¥22.6
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Aluminum
0.158 in
0.135 in
4-40
Mounting Hardware MOLD-IN INSERT, BLIND, BRASS
IBB-440-10
SI
1:
¥93
5,343 In Stock
Mouser Part #
153-IBB-440-10
SI
Mounting Hardware MOLD-IN INSERT, BLIND, BRASS
5,343 In Stock
1
¥93
10
¥65.9
100
¥52.8
500
¥47.5
1,000
View
1,000
¥44.2
2,000
¥42.9
10,000
¥40.5
25,000
¥39.5
50,000
¥38.2
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Leaded Brass
0.406 in
0.188 in
4-40
Mounting Hardware FLOATER,ASSEMBLY,LOCKING,416SS
LA4-440-1MD
PEM
1:
¥398.6
885 In Stock
Mouser Part #
153-LA4-440-1MD
PEM
Mounting Hardware FLOATER,ASSEMBLY,LOCKING,416SS
885 In Stock
1
¥398.6
10
¥368.7
100
¥328.9
250
¥308.9
500
View
500
¥299
1,000
¥289
2,000
¥279
5,000
¥269.1
10,000
Quote
Buy
Min.: 1
Mult.: 1
Details
4-40
Mounting Hardware KF2-440 W/NYLON LOCK KH=.040
CFN-440-1ZI
PEM
1:
¥109.6
2 In Stock
Mouser Part #
153-CFN-440-1ZI
PEM
Mounting Hardware KF2-440 W/NYLON LOCK KH=.040
2 In Stock
1
¥109.6
10
¥78.4
100
¥62.8
500
¥56.5
1,000
View
1,000
¥52.5
2,000
¥51
10,000
¥48
25,000
¥47
50,000
Quote
Buy
Min.: 1
Mult.: 1
Details
Screws & Fasteners
Lock Nut
Steel
5.2 mm
4-40
Male
Mounting Hardware THREADED PRESS IN INSERT 440 .175 LENGTH
CKS-440-1
PEM
1:
¥154.5
950 In Stock
Mouser Part #
153-CKS-440-1
PEM
Mounting Hardware THREADED PRESS IN INSERT 440 .175 LENGTH
950 In Stock
1
¥154.5
10
¥115.4
100
¥89.9
500
¥84.7
1,000
View
1,000
¥82.9
2,000
¥80.1
5,000
¥77.2
10,000
¥74.6
25,000
¥73.4
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
0.175 in
4-40
Mounting Hardware POST MOLD FLANGE INSERT ALUM
PFLA-440-1
SI
1:
¥76.4
990 In Stock
Mouser Part #
153-PFLA-440-1
SI
Mounting Hardware POST MOLD FLANGE INSERT ALUM
990 In Stock
1
¥76.4
10
¥54.5
100
¥43.5
500
¥39.2
1,000
View
1,000
¥36.4
2,000
¥35.4
10,000
¥33.4
25,000
¥32.7
50,000
¥31.6
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Aluminum
0.166 in
0.219 in
4-40
Mounting Hardware VM30B-440-1ZI
VM30B-440-1ZI
PEM
1:
¥436.8
120 In Stock
Mouser Part #
153-VM30B-440-1ZI
PEM
Mounting Hardware VM30B-440-1ZI
120 In Stock
1
¥436.8
10
¥325.6
100
¥252.5
500
¥239.2
1,000
View
1,000
¥232.5
2,500
¥225.9
5,000
¥217.6
10,000
Quote
Buy
Min.: 1
Mult.: 1
Details
4-40
Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS
STKB-440-12
SI
1:
¥89.7
480 In Stock
Mouser Part #
153-STKB-440-12
SI
Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS
480 In Stock
1
¥89.7
10
¥64.6
100
¥51.7
500
¥46.5
1,000
View
1,000
¥43.2
2,000
¥42
10,000
¥39.7
25,000
¥38.7
50,000
¥37.5
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Leaded Brass
0.375 in
0.188 in
4-40
Mounting Hardware PF11MW FLOATING PF W/MATHREAD
PF11MW-440-11
PEM
1:
¥436.8
246 In Stock
Mouser Part #
153-PF11MW-440-11
PEM
Mounting Hardware PF11MW FLOATING PF W/MATHREAD
246 In Stock
1
¥436.8
10
¥403.6
100
¥360.4
250
¥338.8
500
View
500
¥327.2
1,000
¥317.3
2,500
¥305.6
5,000
¥295.7
10,000
Quote
Buy
Min.: 1
Mult.: 1
Details
4-40
Mounting Hardware PF11 W/MATP, BLACK PLASTIC CAP
PF11PM-440-1B
PEM
1:
¥405.3
272 In Stock
Mouser Part #
153-PF11PM-440-1B
PEM
Mounting Hardware PF11 W/MATP, BLACK PLASTIC CAP
272 In Stock
1
¥405.3
10
¥375.4
100
¥333.9
250
¥313.9
500
View
500
¥304
1,000
¥294
2,500
¥284
5,000
¥274.1
10,000
Quote
Buy
Min.: 1
Mult.: 1
Details
4-40
Mounting Hardware STUD, SS (303HQ MAT'L)
SGPC-440-12
PEM
1:
¥53.2
975 In Stock
Mouser Part #
153-SGPC-440-12
PEM
Mounting Hardware STUD, SS (303HQ MAT'L)
975 In Stock
1
¥53.2
10
¥38
100
¥30.6
500
¥27.4
1,000
View
1,000
¥25.4
2,000
¥24.7
10,000
¥23.4
25,000
¥22.9
50,000
¥22.1
Buy
Min.: 1
Mult.: 1
Details
Screws & Fasteners
Stud
0.75 in
4-40
Mounting Hardware
PF52-440-1CN
PEM
1:
¥416.9
440 In Stock
Mouser Part #
153-PF52-440-1CN
PEM
Mounting Hardware
440 In Stock
1
¥416.9
10
¥385.4
100
¥343.8
250
¥322.2
500
View
500
¥312.3
1,000
¥302.3
2,500
¥292.3
5,000
¥280.7
10,000
Quote
Buy
Min.: 1
Mult.: 1
Details
Screws & Fasteners
Captive Panel
4-40
Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS
STKB-440-16
SI
1:
¥132.9
738 In Stock
Mouser Part #
153-STKB-440-16
SI
Mounting Hardware INTERNAL-THRD SPACR KNRL BRASS
738 In Stock
1
¥132.9
10
¥94.7
100
¥75.7
500
¥68.1
1,000
View
1,000
¥63.3
2,000
¥61.6
10,000
¥58
25,000
¥56.8
50,000
Quote
Buy
Min.: 1
Mult.: 1
Details
Inserts
Threaded Insert
Leaded Brass
0.5 in
0.188 in
4-40
Mounting Hardware STUD, SS (303HQ MAT'L)
SGPC-440-10
PEM
1:
¥49.8
1,885 In Stock
Mouser Part #
153-SGPC-440-10
PEM
Mounting Hardware STUD, SS (303HQ MAT'L)
1,885 In Stock
1
¥49.8
10
¥35.9
100
¥28.7
500
¥25.9
1,000
View
1,000
¥24.1
2,000
¥23.4
10,000
¥22.1
25,000
¥21.6
50,000
¥20.8
Buy
Min.: 1
Mult.: 1
Details
Screws & Fasteners
Stud
0.625 in
4-40